Limited Availability

String substr()

The substr() method of strings returns part of a string, starting from an index and ending a given number of characters after.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Jul 29, 2015.

Desktop Browser Engine Support

Google Chrome

1

Supported

Mozilla Firefox

1

Supported

Apple Safari

1

Supported

Microsoft Edge

12

Supported

Mobile Browser Engine Support

Chrome Android

18

Firefox Android

4

Safari iOS

1

Specifications and References

MDN Browser Compat Data Keys: